Answer:
slope = 2/5 and y Intercept = -5
y = 2/5x - 5
Ratios
Note A has a frequency of
fa=1,760 Hz
Note D has a period of 1,175 hertz
(the previous data should be frequency, not period)
We are required to find the ratio of A to D. Let's call it r:

Dividing: r = 1.4978. Rounding to two decimal places:
r = 1.50
Now to express the answer in integer ratio form, we need to simplify the fraction.
First, we divide by 5 up and down:

There are no more common divisors for both numbers, thus the integer ratio form is r = 352/235
I had to google this one and got 17...
53.2
40%=.4
.4 times 38 = 15.2
15.2+38=53.2
Thank me later